Linux Kernel调度管理之fair_sched_class

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fair_sched_class是完全公平调度类：

/*
* All the scheduling class methods:
*/
const struct sched_class fair_sched_class = {
	.next			= &idle_sched_class,
	.enqueue_task		= enqueue_task_fair,
	.dequeue_task		= dequeue_task_fair,
	.yield_task		= yield_task_fair,
	.yield_to_task		= yield_to_task_fair,
	.check_preempt_curr	= check_preempt_wakeup,
	.pick_next_task		= pick_next_task_fair,
	.put_prev_task		= put_prev_task_fair,
#ifdef CONFIG_SMP
	.select_task_rq		= select_task_rq_fair,
	.migrate_task_rq	= migrate_task_rq_fair,
	.rq_online		= rq_online_fair,
	.rq_offline		= rq_offline_fair,
	.task_dead		= task_dead_fair,
	.set_cpus_allowed	= set_cpus_allowed_common,
#endif
	.set_curr_task          = set_curr_task_fair,
	.task_tick		= task_tick_fair,
	.task_fork		= task_fork_fair,
	.prio_changed		= prio_changed_fair,
	.switched_from		= switched_from_fair,
	.switched_to		= switched_to_fair,
	.get_rr_interval	= get_rr_interval_fair,
	.update_curr		= update_curr_fair,
#ifdef CONFIG_FAIR_GROUP_SCHED
	.task_change_group	= task_change_group_fair,
#endif
};

CFS调度类是索引普通进程的调度类，init进程的调度类就是CFS调度类。

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